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Chinese Journal of Polymer Science 2012年第1期30卷 26-35页

作者： Xian-ze yin Ye-qiang Tan yi-hu Song Qiang Zheng Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education Zhejiang University Hangzhou 310027 China Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China

Polystyrene coated silica（SiO_2@PS） core-shell composite particles with averaged diameter of about 290 nm were prepared by in situ emulsion polymerization of styrene on the surface ofγ-methacryloxypropyltrimethoxysilane grafted SiO_2 nanoparticles of 20-50 nm in *** behavior and dispersion stability of SiO_2@PS suspension in 10 wt%PS solution were compared with suspensions of untreated SiO_2 and silane modified SiO_2 *** of the untreated and the silane modified SiO_2 exhibited obvious shear *** SiO-2@PS suspension exhibits shear viscosity considerably smaller than suspensions of untreated and silane modified SiO_2 at low shear *** electron microscopy showed that the composite particles can uniformly and stably disperse in PS solution compared to other suspensions,implying that the PS shell can effectively enhance the particle compatibility with PS macromolecules in solution.

关键词： Fumed SiO_2 Polystyrene Composite particles Suspension Steady rheology

Preparation of Exfoliated Low-density Polyethylene/Montmorillonite Nanocomposites Through Melt Extrusion

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Chemical Research in Chinese Universities 2006年第3期22卷 383-387页

作者： YANG Hong-mei SONG yi-hu XU Bo ZHENG Qiang Department of Polymer Science ＆ Engineering Key Laboratory of Macromolecule Synthesis and Functionalization of MOE Zhejiang University Hangzhou 310027 P. R. China

The effects of ethylene vinyl acetate copelymer （EVA） as a compatibilizer on the dispersion of organically modified montmorillonite（org-MMT） into low-density polyethylene（LDPE） during melt extrusion compounding were studied. The X-ray diffraction patterns reveal that as compared with LDPE, EVA can intercalate more easily into the interlay gallery of org-MMT when the composites contain a low org-MMT content. Exfoliated LDPE/org-MMT nanocompesites in the presence of an EVA compatibilizer could be prepared by using a two-step melt compounding technique with a twin-screw extruder.

关键词： Polyethylene Montmorillonite Nanocompesite Intercalation Exfoliation

Modeling and analyzing point cloud generation in missile-borne LiDAR

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Defence Technology（防务技术） 2020年第1期16卷 69-76页

作者： Min-le Li yi-hua hu Nan-xiang Zhao Qi-shu Qian State Key Laboratory of Pulsed Power Laser Technology College of Electronic EngineeringNational University of Defense TechnologyHefei230037China Anhui Province Key Laboratory of Electronic Restriction Technology Hefei230037China

The missile-borne LiDAR has an essential prospect in precise ***,the instability of the missile has a significant impact on the precision of LIDAR point cloud,thus modeling and analyzing the influencing factors of point cloud generation is *** this investigation,the authors modeled the point cloud calculation process of missile-borne linear array scanning LiDAR under ideal conditions and analyzed the effect of position change on the fleld of view(FOV) in the course of platform ***,the authors summarized that the stability concerning the field of view and the target tracking are dependent on three limiting ***,the authors derived an error formula and analyzed several typical errors in missile platform flight,including scanner error,POS error,system integration error,and platform vibration *** on theo retical analysis and simulation experiments,the model proposed in this papier can provide a theoretical basis for the design of the missile-borne LiDAR system and the selection of related instruments in practice.

关键词： LiDAR Point cloud Precise guidance Vibration

Palladium-catalyzed Cascade Cyclization-Coupling Reaction of Benzyl Halides with N, N-Diallylbenzoylamide

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Chinese Chemical Letters 2003年第8期14卷 771-772页

作者： yi Min hu Yu ZHANG Jian Lin HAN Cheng Jian Zhu yi PAN School of Chemistry and Chemical Engineering Nanjing UniversityNanjing 210093

A novel type of palladium-catalyzed cascade cyclization-coupling reaction has been found. Reaction of N, N-diallylbenzoylamide 1 with benzyl halides 2 afforded the corresponding dihydropyrroles 3 in moderate to excel... 详细信息

关键词： Palladium Heck reaction benzyl halides cyclization cascade reaction.

Long-term observation of vitrectomy without subretinal hemorrhage management for massive vitreous hemorrhage secondary to polypoidal choroidal vasculopathy

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International Journal of Ophthalmology(English edition) 2019年第12期12卷 1859-1864页

作者： Zhi-Xi Li yi-Jun hu Alp Atik Lin Lu Jie hu State Key Laboratory of Ophthalm ology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510060Guangdong ProvinceChina Aier School of Ophthalmology Central South UniversityChangsha 410000Hunan ProvinceChina Royal Victorian Eye and Ear Hospital Melbourne 3000Australia

AIM: To describe the long-term observation of vitrectomy without subretinal hemorrhage(SRH) management for massive vitreous hemorrhage(VH) secondary to polypoidal choroidal vasculopathy(PCV). METHODS: This is a retrospective, consecutive case series. A total of 86 eyes of 86 patients with >14d of massive VH associated with PCV were included. All patients underwent vitrectomy without SRH management, followed by intravitreal ranibizumab injections and/or photodynamic therapy(PDT) as needed. The main outcome measures were best-corrected visual acuity(BCVA), postoperative adverse events and the recurrence of VH. RESULTS: The average follow-up period was 25.5±9.2 mo(range 12-35 mo). Mean BCVA at baseline(2.16±0.39 logM AR)had improved significantly, both 3 mo after surgery(1.42±0.66 log MAR, P<0.001) and by the last visit(1.23±0.74 logM AR, P<0.001). The common postoperative complications included macular subretinal fibrosis in 14 eyes(16.3%) and ciliary body detachment in 4 eyes(4.7%).Nineteen eyes(22.1%) received following treatment with ranibizumab injections without/with PDT, and 15(17.4%)were resolved. Four eyes(4.7%) had recurrent hemorrhage during the follow-up period. In multiple regression analysis,thicker SRH(beta=0.33, P=0.025) in the preoperative B-scan and the presence of foveal subretinal fibrosis(beta=0.28, P=0.018) in the follow up were associated with poor postoperative BCVA. CONCLUSION: Vitrectomy without SRH management for massive VH secondary to PCV improved/stabilized visual function in the long-term observation. Eyes presenting with thicker SRH preoperatively and forming foveal subretinal fibrosis in the follow-up period tended to have worse BCVA.

关键词： polypoidal choroidal vasculopathy vitreous hemorrhage vitrectomy visual acuity

Science prospects for space-borne gravitational-wave missions

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National Science Review 2017年第5期4卷 683-684页

作者： yi-Ming hu Jianwei Mei Jun Luo TianQin Research Center for Gravitational Physics and School of Physics and Astronomy Sun Yat-sen University

The detection of the gravitational-wave（GW）signals GW150914,GW151226together with the transient candidate LVT151012 by Advanced LIGO（a LIGO）marked a new era of GW astronomy[1].While ground-based GW

关键词： Science prospects for space-borne gravitational-wave missions GW

Adaptive data-driven parallelization of multi-view video coding on multi-core processor

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Science in China(Series F) 2009年第2期52卷 195-205页

作者： PANG yi hu WeiDong SUN LiFeng YANG ShiQiang Department of Computer Science and Technology Tsinghua University Beijing 100084 China

Multi-view video coding （MVC） comprises rich 3D information and is widely used in new visual media, such as 3DTV and free viewpoint TV （FTV）. However, even with mainstream computer manufacturers migrating to multi-core processors, the huge computational requirement of MVC currently prohibits its wide use in consumer markets. In this paper, we demonstrate the design and implementation of the first parallel MVC system on Cell Broadband Engine^TM processor which is a state-of-the-art multi-core processor. We propose a task-dispatching algorithm which is adaptive data-driven on the frame level for MVC, and implement a parallel multi-view video decoder with modified H.264/AVC codec on real machine. This approach provides scalable speedup （up to 16 times on sixteen cores） through proper local store management, utilization of code locality and SIMD improvement. Decoding speed, speedup and utilization rate of cores are expressed in experimental results.

关键词： adaptive data-driven multi-view video coding Cell Broadband Engine^TM Processor parallelization

Research trends on artificial intelligence and endoscopy in digestive diseases: A bibliometric analysis from 1990 to 2022

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World Journal of Gastroenterology 2023年第22期29卷 3561-3573页

作者： Ren-Chun Du Yao-Bin Ouyang yi hu Department of Gastroenterology The First Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of Oncology Mayo ClinicRochesterMN 55905United States Department of Surgery The Chinese University of Hong KongHong Kong 999077China

BACKGROUND Recently,artificial intelligence(AI)has been widely used in gastrointestinal endoscopy *** To comprehensively evaluate the application of AI-assisted endoscopy in detecting different digestive diseases using bibliometric *** Relevant publications from the Web of Science published from 1990 to 2022 were extracted using a combination of the search terms“AI”and“endoscopy”.The following information was recorded from the included publications:Title,author,institution,country,endoscopy type,disease type,performance of AI,publication,citation,journal and *** A total of 446 studies were *** number of articles reached its peak in 2021,and the annual citation numbers increased after ***,the United States and Japan were dominant countries in this field,accounting for 28.7%,16.8%,and 15.7%of publications,*** Tada Tomohiro Institute of Gastroenterology and Proctology was the most influential institution.“Cancer”and“polyps”were the hotspots in this *** polyps were the most concerning and researched disease,followed by gastric cancer and gastrointestinal *** endoscopy was the most common type of *** accuracy of AI in detecting Barrett’s esophagus,colorectal polyps and gastric cancer from 2018 to 2022 is 87.6%,93.7%and 88.3%,*** detection rates of adenoma and gastrointestinal bleeding from 2018 to 2022 are 31.3%and 96.2%,*** AI could improve the detection rate of digestive tract diseases and a convolutional neural network-based diagnosis program for endoscopic images shows promising results.

关键词： Bibliometric analysis Artificial intelligence Endoscopy Publications Research trends

Controlled Cell Patterning on Bioactive Surfaces with Special Wettability

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Journal of Bionic Engineering 2017年第3期14卷 440-447页

作者： Xiaofeng Zhou Jiaqian Li Hongyan Sun yi hu Lufeng Che Zuankai Wang Science and Technology on Microsystem Laboratory Shanghai Institute of Microsystem and lnformation Technology Chinese Academy of Sciences Shanghai 200050 China Department of Mechanical and Biomedical Engineering City University of Hong Kong Hong Kong 999077 China Department of Biology and Chemistry City University of Hong Kong Hong Kong 999077 China CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Multi-disciplinary Research Division Institute of High Energy Physics Chinese Academy of Sciences (CAS) Beijing 100049 China College of Biomedical Engineering & Instrument Science Zhejiang University Hangzhou 310027 China

The ability to control cell patterning on artificial substrates with various physicochemical properties is of essence for important implications in cytology and biomedical fields. Despite extensive progress, the ability to control the cell-surface interaction is complicated by the complexity in the physiochemical features of bioactive surfaces. In particular, the manifesta- tion of special wettability rendered by the combination of surface roughness and surface chemistry further enriches the cell-surface interaction. Herein we investigated the cell adhesion behaviors of Circulating Tumor Cells （CTCs） on topog- raphically patterned but chemically homogeneous surfaces. Harnessing the distinctive cell adhesion on surfaces with different topography, we further explored the feasibility of controlled cell patterning using periodic lattices of alternative topographies. We envision that our method provides a designer＇s toolbox to manage the extracellular environment.

关键词： cell patterning wettability superhydrophilic surface chemistry circulating tumor cells

Near real-time gravitational wave data analysis of the massive black hole binary with TianQin

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Science China(Physics,Mechanics & Astronomy) 2024年第7期67卷 175-186页

作者： Hong-Yu Chen Xiang-Yu Lyu En-Kun Li yi-Ming hu MOE Key Laboratory of TianQin Mission TianQin Research Center for Gravitational Physics&School of Physics and AstronomyFrontiers Science Center for TianQinGravitational Wave Research Center of CNSASun Yat-sen University(Zhuhai Campus)Zhuhai 519082China

Space-borne gravitational wave(GW)detectors can detect the merger of massive black *** early warning and localization of GW events before merging can be used to inform electromagnetic telescopes and conduct multimessenger ***,this requires real-time data transmission and analysis *** geocentric orbit of the space-borne GW detector Tian Qin makes it possible to conduct real-time data *** this study,we develop a search and localization pipeline for massive black hole binaries(MBHBs)with Tian Qin under both regular and real-time data transmission *** demonstrate that,with real-time data transmission,MBHBs can be accurately localized on the *** the approaching merger,each analysis can be finished in only 40 *** an MBHB system at a distance of 1 Gpc,if we receive data every hour,then we can pinpoint its location to within less than 1 deg^(2)on the final day before the merger.

关键词： gravitational wave detectors and experiments black holes data analysis algorithms and implementation data management

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